![The ultra-diffuse galaxy KKS2000]04 (NGC1052-DF2).](/sites/default/files/styles/crop_square_2_2_to_320px/public/images/news/nt030619.jpg?h=bc8a2161&itok=5XOM-hsd "The ultra-diffuse galaxy KKS2000]04 (NGC1052-DF2).")
A group of researchers from the Instituto de Astrofísica de Canarias (IAC) has clarified one of the mysteries of 2018 in the field of extragalactic astrophysics: the supposed existence of a galaxy without dark matter.
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This section includes scientific and technological news from the IAC and its Observatories, as well as press releases on scientific and technological results, astronomical events, educational projects, outreach activities and institutional events.
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Almost all massive stars explode as supernovae and form a black hole or neutron star. The remnant mass and the impact of the chemical yield on subsequent star formation and galactic evolution strongly depend on the internal physics of the progenitor star, which is currently not well understood. The theoretical uncertainties of stellar interiors accumulate with stellar age, which is particularly pertinent for the blue supergiant phase. Stellar oscillations represent a unique method of probing stellar interiors, yet inference for blue supergiants is hampered by a dearth of observed pulsationAdvertised on -
By virtue of this agreement, signed today at ESA’s European Centre of Space Research and Technology (ESTEC) in Noordwijk, (The Netherlands), Tenerife will become the main European Centre of Space Communications by laser.Advertised on -
Between August and December 2018, during the Approach and Preliminary Survey phases of the NASA OSIRIS-REx mission, a series of images and spectra of the surface of asteroid Bennu, target of the mission, was acquired. Images acquired with MapCam, using 5 different filters provide an average albedo (fraction of the light reflected by the surface of the asteroid) of about 4.5 %, consistent with the spectral type of Bennu as determined from ground-based observations, and in agreement with the results from OSIRIS-REx disk-integrated photometry. Such a dark surface and spectral behaviour are alsoAdvertised on -
Recently, astrophysicists have studied the configuration of a planetary system (Kepler 107) discovered with the NASA Kepler mission, which was looking for exoplanets outside our Solar System. The planetary system Kepler 107 is constituted of a star similar to the Sun though slightly more massive and four planets orbiting around it. The detailed analysis of the configuration of the planets, in particular their densities, showed that the closest planet is not the densest, which is what is expected from the planet formation theory. Using some simulations, one of the most plausible explanationAdvertised on -
The QUIJOTE experiment operates from the Teide Observatory with the goal of characterising the polarization properties of the cosmic microwave background radiation and other Galactic and extra-galactic emission mechanisms in the frequency range 10-42GHz and at large angular scales. Within the studies conducted in the context of characterizing the diffuse radio emissions of our Galaxy, an "anomalous" microwave emission from the Taurus Molecular Cloud (TMC) has been detected with QUIJOTE. This type of emission was detected for the first time about 20 years ago, and cannot be explained in termsAdvertised on